How to use the @blueprintjs/labs.Omnibox.ofType function in @blueprintjs/labs

import * as React from "react";
import { Classes, MenuItem } from "@blueprintjs/core";
import { Omnibox } from "@blueprintjs/labs";
import { observer } from "mobx-react";
import classNames from "classnames";
import Fuse from "fuse.js";
import { Workspace } from "../stores/Workspace";
import ItBlockWithStatus from "../stores/ItBlock";

export interface QuickSearchProps {
  workspace: Workspace;
}

const ItBlockOmniBox = Omnibox.ofType();

function QuickSearch({ workspace }: QuickSearchProps) {
  let itemId = 0;
  return (
    }
      itemRenderer={({ handleClick, isActive, item }) => {
        if (!item) {
          return <span>;
        }

        const classes = classNames({
          [Classes.ACTIVE]: isActive,
          [Classes.INTENT_PRIMARY]: isActive</span>

import ArtistComponent from 'components/ArtistComponent';
import {filter} from 'fuzzaldrin';
import {LibraryState} from 'definitions';
import * as PropTypes from 'prop-types';
import {PlayerActions} from '../../../player/actions.d';

require('./FuzzySelector.scss');

interface FuzzySelectorProps {
  actions: LibraryActions & PlayerActions;
  library: LibraryState;
}

type  LibraryContent = string;

const ContentOmnibox = Omnibox.ofType();
@HotkeysTarget
export class FuzzySelector extends React.Component{
  static contextTypes = {
    router: PropTypes.shape({
      history: PropTypes.shape({
        push: PropTypes.func.isRequired,
        replace: PropTypes.func.isRequired,
        createHref: PropTypes.func.isRequired
      }).isRequired
    }).isRequired
  }
  constructor () {
    super();
    this.state = {};